|
XC90 '02–'15 General Forum for the P2-platform XC90 model |
Information |
|
Alarm service requiredViews : 1715 Replies : 22Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Jan 8th, 2021, 17:22 | #1 |
Junior Member
Last Online: Apr 19th, 2024 12:14
Join Date: Jan 2020
Location: Alsager, S-o-T. ST7 2DB
|
Alarm service required
My alarm goes off in the night and is now showing a service is needed. I can lock the car and leave for a while without it going off.
Where would I start to look for the fault please ? |
Jan 8th, 2021, 17:50 | #2 |
Premier Member
Last Online: Yesterday 23:00
Join Date: Mar 2017
Location: Manchester
|
alarm siren failiure its a common problem with some volvo models of a certain age .
|
Jan 8th, 2021, 19:57 | #3 | |||
Me ? Surely Not!
Last Online: Apr 5th, 2024 16:23
Join Date: Jul 2010
Location: 2007 Volvo XC90 D5 Geartronic. South of Hadrians Wall.
|
Almost certainly the battery within the Alarm Unit.
Provided the printed circuit board is ok, a new battery can be fitted if your handy. When mine played up , a replacement battery was of no use due to damage to the circuit board from the old battery leaking. I bought a good used alarm unit which sorted it. cheshired5 on here has done a video covering this.
__________________
“Do the right thing. It will gratify some people and astonish the rest.” – Mark Twain 😊 2007 Volvo XC90 D5 SE Geartronic |
|||
The Following User Says Thank You to S60D5-185 For This Useful Post: |
Jan 9th, 2021, 17:26 | #4 |
Master Member
Last Online: Feb 28th, 2023 20:25
Join Date: Feb 2013
Location: Wirral
|
I agree, but would add that if simply replacing the battery, clean the board thoroughly to remove any residue.
I replaced mine as a precaution when I first got the car. There was minimal damage when I took it apart, but no symptoms yet. Then, 2 years later I had problems. When I took it apart again, the corrosion had continued. I had to carry out some major board repairs, but this time I washed the board with white vinegar, then clean water to kill off any battery residue. Obviously, I dried it thoroughly before re-powering it. More information on this thread. https://www.volvoforums.org.uk/showthread.php?t=306010
__________________
2003 V70 2.4SE Auto. Gone now. 2003 XC90 D5. Auto. |
The Following User Says Thank You to Father Ted For This Useful Post: |
Jan 10th, 2021, 22:32 | #5 |
Junior Member
Last Online: Apr 19th, 2024 12:14
Join Date: Jan 2020
Location: Alsager, S-o-T. ST7 2DB
|
Many 😊.
I’ll give it a go when the weather permits and I’ll let you know how I get on. |
Jan 11th, 2021, 13:38 | #6 |
Junior Member
Last Online: Apr 19th, 2024 12:14
Join Date: Jan 2020
Location: Alsager, S-o-T. ST7 2DB
|
7.2v battery
Just bought the same battery shown in the video from eBay for £14. Should get it by the weekend 😊
|
The Following User Says Thank You to Bits For This Useful Post: |
Jan 12th, 2021, 08:12 | #7 |
Junior Member
Last Online: Apr 19th, 2024 12:14
Join Date: Jan 2020
Location: Alsager, S-o-T. ST7 2DB
|
I have removed the siren from the car and will split it open later today. The car still operates without it and does not show any fault. 😊
I have not locked the car. |
Jan 13th, 2021, 10:55 | #8 |
Junior Member
Last Online: Apr 19th, 2024 12:14
Join Date: Jan 2020
Location: Alsager, S-o-T. ST7 2DB
|
Motherboard goosed
Part of the board is burned out.
Anyone got a spare please? |
Jan 13th, 2021, 11:06 | #9 |
Junior Member
Last Online: Apr 19th, 2024 12:14
Join Date: Jan 2020
Location: Alsager, S-o-T. ST7 2DB
|
What does this module control please?
Can I get away with not replacing it? I have not locked the car since removing it. Will the doors still lock and unlock without it? I’m not bothered about having an alarm. Just need to lock the car. |
Jan 13th, 2021, 15:23 | #10 |
Master Member
Last Online: Yesterday 21:47
Join Date: Dec 2016
Location: Southend on sea
|
Hi, I had same problem on my XC90 and on previous V70. I tried replacing battery on my old V70 and although PCB seemed ok, did not fix the problem. I then replace the whole module and end of problem.
When I purchased my current XC90 it had this problem as known fault. I simply purchased a new unit and fitted that. I do have my old unit of this latest car, I have not tried to open it, it is just as it was when I removed plus it has the spare security bolt (which I never replaced). You can see second hand units on the 'bay for about £50 and new will cost about £180. But note they all fail after a time so second hand is risky. The car will work fine without it but beware of the insurance implications. This may not bother you, but would concern your insurance provider. This was the only reason I wanted mine fixed, that and the BL**Dy message each time car started. It takes about 1 hr to replace plus the new pop rivets etc. My view is just replace with new and forget about it. You also very welcome to my old unit, but not messing about opening it up. You can have it for the cost of postage.... But I know battery has failed and so could the circuit board.. But again, the cheapest option time wise is just to replace the unit with new. Cheers John l Last edited by john langrick; Jan 13th, 2021 at 15:26. |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|